What's with calling Transformers by their ID numbers?

[STL]

(1). I'm lazy and typing MP-4 for example is quicker than typing Masterpiece Convoy Perfect Edition

That's me right there.

[griffin]

I think for MP01 and MP04 it makes it easier to differentiate between them, especially for trades. It might also be necessary for MP05 to be referred to that instead of its 'more searchable' real name in certain topics (not that it would actually protect anyone legally though).
When we had about 4 of them, it was easy to know which was being referred to, as we abbreviate as much as possible (especially in titles with limited space), but now that we are up to 8, it is indeed starting to confuse people.
I won't be enforcing anything, but it is always recommended to post what is easiest for others to read.

[jaydisc]

The thing I don't understand is why some people pad the Masterpiece number with a 0. My MP-4 has no 0 (thus not MP04/MP-04).

Is it just hope that the masterpiece line will make it to 10?

[GoktimusPrime]

MP0001. It's a good point though... when I see "MP01" my mind's voice actually says "Em-Pee-Oh-Wun."